Update.
[glibc.git] / dlfcn / dlopenold.c
blobb83d64d91d8d747329dc87813ff3b73f69a998dc
1 /* Load a shared object at run time.
2 Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <dlfcn.h>
21 #include <stddef.h>
23 /* This file is for compatibility with glibc 2.0. Compile it only if
24 versioning is used. */
25 #include <shlib-compat.h>
26 #if SHLIB_COMPAT (libdl, GLIBC_2_0, GLIBC_2_1)
28 struct dlopen_args
30 /* The arguments for dlopen_doit. */
31 const char *file;
32 int mode;
33 /* The return value of dlopen_doit. */
34 void *new;
35 /* Address of the caller. */
36 const void *caller;
40 static void
41 dlopen_doit (void *a)
43 struct dlopen_args *args = (struct dlopen_args *) a;
45 args->new = _dl_open (args->file ?: "", args->mode | __RTLD_DLOPEN,
46 args->caller);
49 extern void *__dlopen_nocheck (const char *file, int mode);
50 void *
51 __dlopen_nocheck (const char *file, int mode)
53 struct dlopen_args args;
54 args.file = file;
55 args.caller = RETURN_ADDRESS (0);
57 if ((mode & RTLD_BINDING_MASK) == 0)
58 /* By default assume RTLD_LAZY. */
59 mode |= RTLD_LAZY;
60 args.mode = mode;
62 return _dlerror_run (dlopen_doit, &args) ? NULL : args.new;
64 compat_symbol (libdl, __dlopen_nocheck, dlopen, GLIBC_2_0);
65 #endif